<p>The hook_cronapi($op, $function = NULL) allows you to define new cronjobs</p>

<h3>Example</h3>
<pre>
// Define custom cron functions
function mymodule_cronapi($op, $function = NULL) {
  switch($op) {
    case 'list':
      return array(
        'mymodule_cronjob_1' => 'Cron-1 Handler',
        'mymodule_cronjob_2' => 'Cron-2 Handler',
        'mymodule_cronjob_3' => 'Cron-3 Handler',
      );

    case 'rule':
      switch($function) {
        case 'mymodule_cronjob_1': return '*/13 * * * *';
        case 'mymodule_cronjob_2': return '0 0 1 * *';
      }
      break;

    case 'execute':
      switch($function) {
        case 'mymodule_cronjob_2':
          mymodule_somefunction();
          break;
      }
      break;

    case 'settings':
      switch ($function) {
        // 'mymodule_cronjob_3' disabled by default
        case 'mymodule_cronjob_3': return array('enabled' => FALSE);
      }

    case 'configure':
      switch ($function) {
        case 'mymodule_cronjob_3': return 'admin/configure-modules-settings/xxx';
      }
  }
}

// Custom cron-function
function mymodule_cronjob_1() {
  // Do some stuff ...
}

// Custom cron-function
function mymodule_somefunction() {
  // Do some stuff ...
}

// Custom cron-function
function mymodule_cronjob_3() {
  // Do some stuff ...
}
</pre>

